Life is just a Cat's Cradle....
Have you ever played Cat's Cradle? (No, not the song by Harry Chapin - that's actually Cats in the Cradle.) Cat's Cradle is the game played between two people with a long string tied in a large circle. The string is then wound around one person's fingers and then manipulated by the other person into various figures or arrangements. The players go back and forth with this game until all the various figures are made.
I used to play this game as a kid and wasn't very good at it. In fact, I usually ended up frustrated with a knotted string before it was all over. In analyzing the basic nature of the game, I realize that it begins with a linear object becoming more and more complicated as the game progresses - particularly if errors occur.
What a metaphor for life!
You start a project with a goal in mind, only to have that direct path curve, turn and become something altogether different. Sometimes those curves and turns cause a beautiful thing (Cat's Cradle - diamond configuration) and others end in a mess (Paul's knotted string). The trick is to know when you've reached a point at which you can transform your situation into something better and when you should get the scissors.
When your head fails to know the next move, just relax. There's always another piece of string to tie together and try again.